A complex fault-tolerant power system simulation

A correct evaluation of the availability indices in the different vital areas of a complex power system needs a fault events simulation. On this goal is used a high level type of generalized stochastic Petri net (GSPN), modeling the system behavior in each of the selected vital area. The paper introduces a practical model to simulate the fault events evolution and to evaluate the fault indices named logical explicit stochastic Petri nets (LESPN). The paper exemplifies the LESPN model for a simple fault-tolerant system and extends the results for a complex power system. A simple fault-tolerant multiprocessor system is used for a comparative study of GSPN and LESPN models. The complex fault tolerant system presented in the paper is the isolated electric ship power system.